Shanghai Tensun Intelligence Security Technology (上海腾盛智能安全科技, also known as Tengsheng Smart) is a company producing fire detection systems for the public transportation sector. It offers image-based, dual wavelength infrared detection, temperature sensing, and other fire alarm products that are applicable for expressway tunnels, urban underground space passages, urban river-crossing, cross-sea tunnels, airports and aviation hubs, etc. The company also provides related software solutions that include IoT, cloud computing, big data, and online monitoring.